package com.ktjy.ch07.service;


import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.security.core.authority.AuthorityUtils;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.security.crypto.password.PasswordEncoder;
import org.springframework.stereotype.Service;
import org.springframework.boot.autoconfigure.security.SecurityProperties;
import org.springframework.security.core.userdetails.User;

@Service("userDetailsService")
public class UserDetailsServiceImpl implements UserDetailsService {

    @Autowired
    private PasswordEncoder pw;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 1、判断用户名是否存在，如果不存在，抛出 UsernameNotFoundException 异常
        if (!"admin".equals(username)) {
            throw new UsernameNotFoundException("用户名不存在！");
        }
        // 2、把查询出来的密码(注册时已经加密过的)，直接放入 User 的构造方法中
        String password = pw.encode("123");
        return new User(username, password, AuthorityUtils
                .commaSeparatedStringToAuthorityList("admin,system:user:listm,main,ROLE_main"));
    }
}
